Blar i NTNU Open på forfatter "Zaabout, Abdelghafour"
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An advancement in CO2 utilization through novel gas switching dry reforming
Ugwu, Ambrose; Zaabout, Abdelghafour; Amini, Shahriar (Journal article; Peer reviewed, 2019)This study is the first experimental demonstration of CO2 capture and utilization for dry methane reforming using a novel chemical looping concept, “Gas Switching Dry Reforming” (GSDR) to produce syngas. The new reactor ... -
Comparison of phenomenological and fundamental modelling approaches for predicting fluidized bed reactor performance
Cloete, Schalk; Zaabout, Abdelghafour; Johansen, Stein Tore; Amini, Shahriar (Journal article; Peer reviewed, 2012)Two approaches to modelling fluidized bed reactors were evaluated and compared in this work: a phenomenological 1D approach based on empirical closures and a more fundamental 2D approach based on computational fluid dynamics ... -
Demonstration of Swing adsorption cluster concept (SARC) for CO2 capture
Dhoke, Chaitanya (Doctoral theses at NTNU;2021:148, Doctoral thesis, 2021)Adsorption-based post-combustion CO2 capture is enjoying significant research attention due to its wide applicability within the power and industrial sectors and its ability to retrofit existing infrastructure. Important ... -
Experimental Demonstration of a Novel Gas Switching Combustion Reactor for Power Production with Integrated CO2 Capture
Zaabout, Abdelghafour; Cloete, Schalk Willem Petrus; Johansen, Stein Tore; Annaland, MV; Gallucci, F; Amini, Shahriar (Journal article; Peer reviewed, 2013)This paper experimentally demonstrates the feasibility of a novel gas switching combustion (GSC) reactor as an alternative to the traditional chemical looping combustion (CLC) process for power production with integrated ... -
Experimental demonstration of pressurized chemical looping combustion inan internally circulating reactor for power production with integrated CO2capture
Osman, Mogahid; Zaabout, Abdelghafour; Cloete, Schalk Willem Petrus; Amini, Shahriar (Peer reviewed; Journal article, 2020)This study presents an experimental demonstration of pressurized chemical looping combustion (CLC) in an internally circulating reactor (ICR). The ICR concept is a novel alternative to the conventional interconnected ... -
Gas Switching Reforming (GSR) for syngas production with integrated CO2 capture using iron-based oxygen carriers
Zaabout, Abdelghafour; Dahl, Paul Inge; Ugwu, Ambrose; Tolchard, Julian R; Cloete, Schalk Willem Petrus; Amini, Shahriar (Journal article; Peer reviewed, 2019)The process behavior of a Gas Switching Reforming (GSR) reactor was studied using three different iron-based oxygen carrier materials: Iron-oxide on Alumina, Iron-Nickel oxide on Alumina and Iron-Ceria on Alumina. It was ... -
Gas Switching Reforming for syngas production with iron-based oxygen carrier-the performance under pressurized conditions
Ugwu, Ambrose; Zaabout, Abdelghafour; Tolchard, Julian R; Dahl, Paul Inge; Amini, Shahriar (Journal article; Peer reviewed, 2019)A four-stage Gas Switching Reforming for syngas production with integrated CO2 capture using an iron-based oxygen carrier was investigated in this study. The oxygen carrier was first reduced using dry methane, where high ... -
Hydrogen production by water splitting using gas switching technology
Ugwu, Ambrose; Donat, Felix; Zaabout, Abdelghafour; Müller, Christoph; Albertsen, Knuth; Cloete, Schalk Willem Petrus; van Diest, Geert; Amini, Shahriar (Peer reviewed; Journal article, 2020)This study demonstrates a novel“Gas Switching Water Splitting (GSWS)”technology for production of pure H2with integrated CO2capture. The reactor concept is based on the chemical looping technology where an oxygencarrier ... -
Internally circulating fluidized-bed reactor for syngas production using chemical looping reforming
Osman, Mogahid; Zaabout, Abdelghafour; Cloete, Schalk Willem Petrus; Amini, Shahriar (Peer reviewed; Journal article, 2018)Chemical looping reforming (CLR) is a promising method for achieving autothermal methane reforming without the energy penalty of an air separation unit that is required for partial oxidation (POX) or oxygen-blown autothermal ... -
Mapping the operating performance of a novel internally circulating fluidized bed reactor applied to chemical looping combustion
Osman, Mogahid; Zaabout, Abdelghafour; Cloete, Schalk Willem Petrus; Amini, Shahriar (Peer reviewed; Journal article, 2020)Chemical looping combustion is a promising technology for minimizing the energy penalty of CO2 capture. To accelerate the scale-up and commercialization of this technology for pressurized operation, the internally circulating ... -
Review of pressurized chemical looping processes for power generation and chemical production with integrated CO2 capture
Osman, Mogahid; Khan, Mohammed Nazeer Ul Hasan; Zaabout, Abdelghafour; Cloete, Schalk Willem Petrus; Amini, Shahriar (Peer reviewed; Journal article, 2021)Chemical looping has great potential for reducing the energy penalty and associated costs of CO2 capture from fossil fuel-based power and chemical production while maintaining high efficiency. However, pressurized operation ... -
Sorbents screening for post-combustion CO2 capture via combined temperature and pressure swing adsorption
Dhoke, Chaitanya; Cloete, Schalk Willem Petrus; Krishnamurthy, Shreenath; Seo, Hwimin; Luz, Ignacio; Soukri, Mustapha; Park, Yong-ki; Blom, Richard; Amini, Shahriar; Zaabout, Abdelghafour (Peer reviewed; Journal article, 2020)Adsorption-based post-combustion CO2 capture is enjoying significant research attention due to its potential for significant reductions in energy penalty, cost and environmental impact. Recent sorbent development work has ... -
The effect of frictional pressure, geometry and wall friction on the modelling of a pseudo-2D bubbling fluidised bed reactor
Cloete, Schalk Willem Petrus; Johansen, Stein Tore; Zaabout, Abdelghafour; van Sint Annaland, Martin; Gallucci, Fausto; Amini, Shahriar (Journal article; Peer reviewed, 2015)The two fluid model (TFM) closed by the kinetic theory of granular flows (KTGF) has been developed to a high level of maturity over the past three decades. However, significant uncertainties still remain about the influence ... -
The generality of the standard 2D TFM approach in predicting bubbling fluidized bed hydrodynamics
Cloete, Schalk Willem Petrus; Zaabout, Abdelghafour; Johansen, Stein Tore; Annaland, MV; Gallucci, F; Amini, Shahriar (Journal article; Peer reviewed, 2013)Hydrodynamic simulations of a pseudo-2D bubbling fluidized bed were carried out and compared to experiments conducted over a wide range of flow conditions. The primary purpose of this study was to assess the generality of ... -
The swing adsorption reactor cluster (SARC) for post combustion CO2 capture: Experimental proof-of-principle
Dhoke, Chaitanya; Zaabout, Abdelghafour; Cloete, Schalk Willem Petrus; Seo, Hwimin; Park, Yong-ki; Blom, Richard; Amini, Shahriar (Journal article; Peer reviewed, 2018)This paper presents the first experimental demonstration of the novel swing adsorption reactor cluster (SARC) for post combustion CO2 capture. The SARC concept combines a temperature and vacuum swing for sorbent regeneration. ...